electric = 1This tells the physics that there is no fuel tank, no idle and no engine stall.2b. the "stall" section is still used to make sure that engine braking goes down to zero at zero rpm. Example:

Ok, I tried fast. You could have said it was going to be more complicated than that :p

all steps of your guide followed (thanks again). Only things I changed.

Bike loads, np. Starts fine in "Neutral", np.

Rides wierd as hell: doesn't really want to lean, nose dives like mad in the air if you have zero throttle, and does NOT whip. Like, it barely deviates from full straight.

I adjusted the engine braking (lowering it a lot). It fixes the nose dive , but not the whipping issue

My conclusion: there is a flywheel issue linked to the engine. Is there an other parameter that needs to be tuned compared to a ICE? I haven't touched wheel inertia (obviously) nor anything else that I could see...